distributed databases Systems (DDBS) are a set of logically networked computer databases, managed by different sites, locations and accessible to the user as a single database. DDBS is an emerging technology that is u...
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distributed databases Systems (DDBS) are a set of logically networked computer databases, managed by different sites, locations and accessible to the user as a single database. DDBS is an emerging technology that is useful in data storage and retrieval purposes. Still, there are some problems and issues that degrade the performance of distributed databases. The Aim of this paper is to provide a novel solution to distributed database problems that is based on distributed database challenges collected in one diagram and on the relationship among DDB challenges in another diagram. This solution presents two methodologies for distributed databases management Systems: deep learning-based fragmentation and allocation, and blockchain technology-based security provisioning. The contribution of this paper is twofold. First, it summarizes major issues and challenges in the distributed database. Additionally, it reviews the research efforts presented to resolve the issues. Secondly, this paper presents a distributed database solution that resolves the major issue of distributed database technology. This paper also highlights the future research directions that are appropriate for distributed database technology after the implementation in a large-scale environment and recommended the technologies that can be used to ensure the best implementation of the proposed solution.
The problem of traditional distributed database implementation in real-time control is discussed. According to features of data in real-time control distributed system, a enhanced performance design model (EPADM) of d...
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The problem of traditional distributed database implementation in real-time control is discussed. According to features of data in real-time control distributed system, a enhanced performance design model (EPADM) of distributed database control is presented. Lastly, measurement analysis and some appraizement on EPADM is gived.
This paper considers a distributed database represented by the relational model, and proposes an efficient procedure to reflect the update of the base relation for materialized views defined by the inequality query fr...
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This paper presents the research on the support of block chain technology by distributed database. Block chain technology is the underlying technology framework of universality, which can bring profound changes in the...
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This paper presents the research on the support of block chain technology by distributed database. Block chain technology is the underlying technology framework of universality, which can bring profound changes in the fields of finance, economy, science and technology and even politics. According to the current development of block chain technology, block chain technology will experience Programming the digital encryption system as the main feature of the block chain 1.0 mode, the programmable financial system as the main feature of the block chain 2.0 model and the programmable society as the main feature of the block chain 3.0 model. In this paper, we will elaborate the basic model, basic principle and key technology of block chain technology, and some innovative modes of block chain outside the bit coin system, which are used in the most other block chains that are similar to Bitcoin, and only in some specific aspects of the use of bitmember models more or less variants.
Collaborative design has become a research topic mainly in the domain of Architecture Engineering and Construction (AEC).Data sharing is a basic requirement in collaborative AEC *** distributed database environment,a ...
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Collaborative design has become a research topic mainly in the domain of Architecture Engineering and Construction (AEC).Data sharing is a basic requirement in collaborative AEC *** distributed database environment,a new information infrastructure and data sharing method by agent based agile database reconstruction is *** method can retrieve all partners' data information and can reconstruct a virtual distributed database with it,intelligently, flexibly and *** it makes the agent based agile software development possible for the virtual enterprise.
Since the era of big data is coming, the first important problem is how to enhance the speed of database query. For the query optimization of distributed database, the speed of query depends on the data transfer and o...
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ISBN:
(纸本)9781467395885
Since the era of big data is coming, the first important problem is how to enhance the speed of database query. For the query optimization of distributed database, the speed of query depends on the data transfer and order of join. The cost model minimizing communication cost is the emphasis of research. Parallel Genetic Algorithm-Max-Min Ant System was proposed to seek a best query execution plan, which combines faster convergence of Genetic Algorithm, globally search ability of Max-Min Ant System and parallel property of both them. The experiment results show that the proposed algorithm is effective for query processing of multi-join, and plays important role in improving the performance of distributed database.
作者:
Obaidah A. RawashdehHiba A. MuharebNedhal A. Al-SayidMSc. Student
Computer Science Dept. Faculty of Information Technology Applied Science University Amman Jordan MSc. Student
Computing Science Dept. Faculty of Information Technology Princess Sumaya University of Technology. Amman Jordan Associate Professor
Computer Science Dept. Faculty of Information Technology Applied Science University Amman Jordan
In this paper, we present an optimistic concurrency control solution. The proposed solution represents an excellent blossom in the concurrency control field. It deals with the concurrency control anomalies, and, simul...
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ISBN:
(纸本)9781467356107
In this paper, we present an optimistic concurrency control solution. The proposed solution represents an excellent blossom in the concurrency control field. It deals with the concurrency control anomalies, and, simultaneously, assures the reliability of the data before read-write transactions and after successfully committed. It can be used within the distributed database to track data logs and roll back processes to overcome distributed database anomalies. The method is based on commit timestamps for validation and an integer flag that is incremented each time a successful update on the record is committed. We show that this method overcomes inefficient taken methods (i.e. unnecessary restarts) in order to improve the performance and to increase productivity. Moreover, the method includes information about the time-stamping of transactions and flagging successfully updated data in the main-memory as it is proposed. Finally, the implemented work finds a need for an adaptive and an integrated concurrency control method in distributed database systems. Thus, a new optimistic concurrency control method is presented in this paper where it is expected to produce correct and reliable results.
distributed database systems are of more importance since Internet-based applications are developing *** Cloud applications and mobile applications require database with better performance and *** to allocate partitio...
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distributed database systems are of more importance since Internet-based applications are developing *** Cloud applications and mobile applications require database with better performance and *** to allocate partitioned data to database servers is important to the efficiency of the whole *** paper proposes a heuristic data allocation method to achieve minimizing overall data operation *** results show that the proposed data allocation method can reduce the data operation cost,thus improves the execution efficiency of the application.
In this paper,on the basis of the research on the existing distributed query optimization,against the higher repetition rate,a new query processing program is presented,which completes the data dictionary,the overall ...
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In this paper,on the basis of the research on the existing distributed query optimization,against the higher repetition rate,a new query processing program is presented,which completes the data dictionary,the overall model design,and then improves the query *** shows that the strategies can improve the efficiency of the query,reduce the amount of middle data,and effectively reduce the total cost of network communication.
With high bandwidth and low latency, the InfiniBand protocol has been widely used in distributed databases and high-performance computing in recent years. Compared to traditional PCI bus, 10 Gigabit Ethernet and Myrin...
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With high bandwidth and low latency, the InfiniBand protocol has been widely used in distributed databases and high-performance computing in recent years. Compared to traditional PCI bus, 10 Gigabit Ethernet and Myrinet technology, InfiniBand in addition to the delay and bandwidth on the dominant and has a better quality of service. This paper first introduces the basic situation and principle of InfiniBand protocol and its application status in high performance computing field. Based on InfiniBand protocol, this paper proposes a high-performance message passing method based on remote direct memory access, such as delay and peak bandwidth Indicators have very good characteristics. The experimental results show that compared with the traditional technology, the improved method proposed in this paper reduces the delay of more than 20% and the bandwidth is more than doubled, and improves the system performance by reducing the transmission time of the control message.
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